package cn.tedu._06article.base.filter;

import cn.tedu._06article.pojo.vo.UserSelectVO;
import lombok.extern.slf4j.Slf4j;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;


@Slf4j
@WebFilter(filterName = "LoginCheckFilter" ,urlPatterns = {"/v1/user/article"})
public class LoginCheckFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        Filter.super.init(filterConfig);
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        log.debug("过滤器进行校验数据");
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        //获取会话
        HttpSession session = request.getSession();
        UserSelectVO userSelectVO= (UserSelectVO)session.getAttribute("user");//校验登录状态
        if (userSelectVO!=null){
            filterChain.doFilter(request,response);
        }else {
            response.sendRedirect("login.html");
        }
    }

    @Override
    public void destroy() {
        Filter.super.destroy();
    }



}
